Thread: No Voice Recognition, on car unit NO, on tablet Yes

Edit :

Found the solution.
Noticed that the Google app was not installed so I installed from the Google Play Store and now the Voice button is there and it works !

EDIT 2 :

Except in the head unit > Settings > Language and input > Speech I don't have the " Voice input " setting where you can choose between Enhanced Google services and Basic Google recognition.
There is only " Voice output " witch goes to Text-to speech options
Maybe that's the reason Voice input not always find / understand the correct addresses ( only basic setting available ) ?